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Page Title:
COMPONENT LOCATIONS - CONTINUED |
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 TM 9-2320-312-24-1
TROUBLESHOOTING INTRODUCTION - CONTINUED
0004 00
COMPONENT LOCATIONS - CONTINUED
NOTE
The location of engine and transmission sensors and sending units can be found in Group 020 and Group
070 of the Commercial Service Manuals.
KEY
COMPONENT
LOCATION
1
Trailer 24V Converter Box
Underside of cab, left front.
(8 Each Fuses and 6 Each Relays)
2
Electric Horn
Underside of cab, left front.
3
Cab-to-Chassis Connectors
Front of cab under access cover.
(P1, P2, P3, and P4)
4
AC Switch and Relay
Right side of radiator and air cleaner bracket.
5
ESPAR Heater 25A Circuit
Right frame rail on ESPAR heater box.
Breakers (If Equipped)
6
ESPAR Heater Unit
Right front frame rail.
(If Equipped)
7
Turn Signal Flasher Unit
Inside right-side instrument panel.
8
Truck Electrical System Relays
Inside right-side instrument panel.
(10 Each)
9
Transmission 24V Power Unit
Under front instrument panel.
10
Fan Clutch Solenoid
Right frame rail to right of engine.
11
Transmission ECU
Under front instrument panel.
12
Backup Alarm
Left rear, behind taillight.
13
Cab Tilt System Relay and 40A
Inside cab tilt system compartment.
Circuit Breaker
14
12V/24V Junction Box
At rear of battery box.
15
Ignition System 25A Circuit
Upper left side of battery box, above NATO slave receptacle.
Breaker
16
Remote Start Solenoid
Left side of crossmember above transmission.
17
J1939 Diagnostic Connector
Under left of side instrument panel.
18
Electrical System Circuit
Lower instrument panel.
Breakers
19
Emergency Start Switch
Lower-left instrument panel.
20
Brake Light Switches
Underside of cab, left front on brake treadle valve.
0004 00-5
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